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Role of HOTAIR long noncoding RNA in metastatic progression of lung cancer

W Zhao1, Y An, Y Liang

  • 1Respiratory Department, Chinese PLA General Hospital, Beijing, China. xiexw304@126.com.

European Review for Medical and Pharmacological Sciences
|July 11, 2014
PubMed
Abstract

Insights

HOTAIR long noncoding RNA is overexpressed in metastatic lung cancer, promoting cell motility and invasion. This finding offers new therapeutic targets for lung cancer metastasis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Lung cancer is a leading cause of cancer mortality globally, necessitating novel therapeutic strategies targeting molecular mechanisms.
  • Long noncoding RNAs (lncRNAs) are implicated in various cancers, but their role in lung cancer metastasis remains underexplored.

Purpose of the Study:

  • To investigate the expression and functional role of six lncRNAs in lung cancer metastasis.
  • To profile lncRNA expression in primary lung cancer versus metastatic lymph node tissues.

Main Methods:

  • Expression profiling of six lncRNAs in five matched pairs of primary lung cancer and lymph node metastatic tissues.
  • In vitro migration and invasion assays to assess the functional impact of lncRNAs on lung cancer cell motility.
  • Enzyme activity assays to determine the effect of HOTAIR on gelatinase activity.

Main Results:

  • HOTAIR and NEAT1 showed higher expression in lymph node metastatic tissues compared to primary tumors.
  • HOTAIR significantly promoted lung cancer cell motility and invasion in vitro.
  • HOTAIR was found to enhance gelatinase activity in lung cancer cells.

Conclusions:

  • HOTAIR is overexpressed in metastatic lung cancer tissues.
  • HOTAIR overexpression is prospectively associated with enhanced lung cancer cell motility and invasion.
  • HOTAIR represents a potential therapeutic target for inhibiting lung cancer metastasis.

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